Gas-engine.



5;. C.- ENGLSH. GAS 51161115.'

.L PPucATloN 111501111158, 1911. 15S 83 tented Nov. 9, 12H5. 9 a 1.912.2-SHEE1s-s115m1.

65 En' Z g @l WITNESSES.

il C. ENGLISH. "fAs 'ENGINL APPLICATION FILED JUNE S. 19H

Pateted Nov 9, N15.

2 SHEETS-SHEET 2.

ATTORNEY IN1/Enron JOHN enNeLIsn, or camera. .ninw-annsnv.

'eas-'Enemn Specification of Letters Patent.

Application filed .Tune 8, 1911.1- Serial No 631,812.

To all whom it may'concerh' lBe it' known that I, JoHN C LENeLrsmacitizen of theUnited' States, and a' resident of Camden, countyofCamden, and State of New Jersey, have' invented certain new and usefulImprovements in 'Gas-Engines, of

which the following 'is a specification.'

' :The'main objects of this invention are to provide, .in a gas engine,an improved "valve and improved v'alve actuating' mechanism; and toprovideother improvements as will Y a ,plurality of'elongated ports -30,arranged radially with respect tothe seat. The' end ports are,concentric withthe vertex ofthe seat 25 and ap ear hereinafter.v

n .the accompanying-'draWIlgS Figure* 1 isa fragmentarylongitudinal-central section, of a gas engine constructed inl accordanceAwith 'this invention; Fig. 2' a top, plan -vieiv ofthe same;- Fig. 3 aside-elevation of the same;"Fig.4 a reduced-end elevationof 5 a' reducedment of this' invention comprises a cylinder 1, in which, according tothe usual practice,

reciprocatesany suitable piston 2 which is pivotally connected to theinner Aend .of a

connecting. rod 3, theouter end of which is driving-shaft 4. 'l

The cylinder is provided connectedto rotate .a crank` shaft or main.

centrally in the 'a mixture of gas and air-Withinl the cylinder.

The cylinder is also provided with 'a vvaterl -j'acket' 8, forming acompartment 9 for .the

tinuou-s, flat, .annular passage of Water-'for cooling-the cylinder.

For'supplying the cylinder` with' acom bustible' mixture of gases,

upon one' side'thereof'adjacent' tothe inner en'd 'a'substantiallycylindricalvalve case 15, one vSide of which is provided vvith an.conflange 16, which is rigidly secured by means of cap'screws '17 toacorrespon'dingfat annular seat 18 provided therefor on the adjacentside of the f 21 Vfor thepas'sageof Water and''commu--A cylinder 1.5'.lhe'valvecasel is provided with a. Wat-er jacket, 20 providin'g a`compartment eating AWith the'wa'ter compartment 9 of the cylinder 1through anopeni'ng22.-" 1

Thecentral portion ofthe inner surface of 'valve casing 15 and there isarranged mixture passing, 'through the valve.

valve. i seat may" be' slightly truncated las shown 1n the dravvin-gs-4to provide a narrow annular shoulder 28 surrounding the `.valve s tem,although this is not imperative.

The conical valve seat 25' isprovided with Walls 31 and-32 of each ofthese the longitudinal side Walls 33 are preferably straight, eonverginginwardlytoward the These ports 30 opelr vertex of" theseat. through theseat intoan annular passage V35 provided therefor inthecasing 15,coaxial n Withl the seat, andthe portscommunicate'l through thisannularzpassage Witha tubular inlet 36, which projeots "outwardlyfrom'the supply pipe for conducting a'eolnbustible .mixture'ofgases'intotheinlet 36.

For quickly opening'or closing the ports 30.in the conicalvalve seat-2 5there ispro vided-a conical valve-,40,whi'ch isrigidly .secured to 'the.inner .end of the .valve stem 2T head thereof with the spark plig 5,,having t'e'rn'linalsv -6 and 7 Within-4 the end of the cylinder forgenerating la, spark to explode.'

by means of a' pin 41 .extending-through an inwardly projecting.h'uh`42'provided on the.V

'I' truncated .,Wlhefe theiSeat-. -is tilnca ted.- The outer margin .offthe valve-140]* rojects Vin` ".Wardly Vfrom thevalvecas'inglilnto a,cylin-4 vdriea--l recess 4 3 provided the outer surface ofthecylinder'1i The inner surface of 'thefvglve .4()fis' preferab y 'concave toprovide. a. 'compartment' 45 b tween the valve and the cylinderto'receive'theseous The v compartment .45 is. in .permanentcommunicationWith-the clearance spaceor comp-ession 'space-46 of' thecylinderithrou'gh. a ,dat

Veral port 4 7'providedthere1ior linthe wall @E the cylinder. 5 Thevalve 401s provided with Vaj'pluralityy of ports' 50 corresponding iirnumben-size and arrangement with the ports to; which is connected aefor. in the ,that purpose.

= vided therefor in A30 in the valve'sea-t, so that all the ports in;

holding thel valve' Zl0 For yieldingly a spiral spring 55 suragainst itsseat 25,

rounds the outer end of the valve stem 27 and fits loosely in anannular' recess 56 prothe outer surface of the valve casing 15. lTheinner end of the spring 55' engages against the valve casing-15 andr theouter end of the spring engages against a nut 57 threaded upon the outerend of the valve stem 27, the nut 57 being held adjustably in place withrespect to the valve st-em and closing of the ports in theI valve seatby the valve,'the outer end of the valve stem 27 is preferably providedwith a crank arm 60, rigidly secured thereto, the inner end of the armpreferably being provided with an angular opening 61 in the form of aregular polygon in cross section, having as many sides as there areports in the valve, and the outer end of the valve stem iscorrespondingly formed as at 62 to fit snugly in this opening A pin 63may be inserted through a hub 64 provided therefor on the inner end ofthe `cralnkarm 60, and through the end of the valve stem 27 to hold theAcrank arm in position. f

The outer end of the crank arm 60 may be connected to lone end of a link70 by means of'a-bolt'71 parallel to the valve stem 27. On'e end of thisbolt 71 fits loosely in an elongated slot 72 through the outer end ofthe :van 00 andextending longitudinally therein, and the otherend ofthis bolt fits snugly in an aperture 7 3 through the end of the link 70. T he bolt 71 is provided at one end With a head 7 4, and at its otherend With a nut 7 5 and a lock nut 7 6 for holding the outer end of thecrank arm in sliding engagement with the adjacent end of the link 70.The other end `of the link may connected to a lug 80 rigid ivith thevalve case by means of a stud 81 parallel to he valve stem 27, and oneend of which is threaded into the lug 80 and the other end of whichprojects outwardly from the link 70 and is provided with a nut 82 and alock n ut 88 for holding the link against movement longitudinally of thestud 81.

For oscillating the link 70 about the`stud 81 an eccentric rod 85 ispivotally and adjustably connected at one end to the link 70 by means ofa stud 86 which extends through the rod, The outer end of the stud ispro-` vided with a head 87 vvhich engages against a lock nut 58. Thespring 55 is held nor. `mally slightly compressed to maintain the theside of the` eccentric rod and the inner portion of the stud is reducedin diameter to form an annular shoulder 88 and fitsl slidably'in 'anelongated slot 89 extending longitudinally through the link 70 and isthreaded through a square nut 90 slidable longitudinally in an elongatedrecess 93: on the inner side of the link 7 0. A vWasher 92 surrounds thestud 86 between its shoulder 88 and the link 70.. By this construction,the stud, 86 is held in fixed position with respect to the link 7 0, butmay be adjusted. longitudinally of the link. By adjusting the stud 86longitudinally of the link 70, the amount of oscillation or opening ofthe valve and 4therelative rapidity of its action may be varied. Theother end of the eccentric rod 85 lis rigidly connected to an ecthe link70 as heretofore described, one end of the link may be pivoted as shownin Fig.' 5, to the outer end of the crank arm 60 by means of a bolt 105extending snugly through the crank arm, and snugly through the end ofthe crank, and the other end of the link may be pivotally connected toone end of a second link 106, by means of a bolt 107, the other end ofthe second link being pivotally connected to a lug 108 rigid with thevalve case by means of a stud 109. This latter arrangement obviates thenecessityof having an elongated slot in the crank arm and the consequentmovement of the bolt 71 longitudinally of the arm in this slot as in theconstruction first described.

A valve constructed in accordance ivith this invention as heretoforedescribed, is substantially noiseless in its operation and isalways'held snugly against its seat in such a manner as to reduce orobviate entirely the possibility of a loss of compression in thecylinder owing to failure of the valve to contact ivith its seat, assometimes happens with a valve lwhich reciprocates toivard and avvayfrom its seat, owing sometimes to very..

valve stein after having rotated the valved through a part of the turnto bring the various portions of the' surface of the valve into YcocontactV with diieientportionsof the .sur-

face of its seat. The angular construction of the 'oifiter"end ofthevalve stem makes it possible tov malte this change conveniently withoutremoving the valve ease from the cylinderg'as thefvalve, -When thuschanged, will always be inthe proper operative position so thai'l theports of the valve will register with/the'ports 0fthefv'alve sea-t 4atthe proper'tiine, since the'innerend'of the arm is provided with theopening 61 having the shape of a regular polygonzin cross. section. withas many sides astheie are ports in the'fvalver Y' .Y 11 'v It is to beunderstood that the cylinder l is also'providfed witha'second valvecaselp, containing an exhaust valve 'which mayl be a conical valveconstructed and actuated as hereinbefo're described, but arranged toperform the functions of opening and closing a' plurality of 'exhaustports, leading from the cylinder. The Vexhaust eccentric would of coursebe arranged upon its shaft to have Y the exhaust valve. alternate in itsoperation' Vwiththe inlet valve. f

Although this invention has been shown. as applied to gas engines,'and'particularly of the explosive type, it is obvious lthat it is notlimited to the yparticular form shown and describedbutmigh-t bevappliedto other tvpesof engines -foun-d desirable. Furthermore, theinvention is' not limiteduto4 any particular construction disclosed, butmight be applied in various constructions to ineet various needs withoutdeparting from the spirit of the invention lor the scopeofthe appendedclaims.

. Having thus fully described thisinvention, I claim and desire toprotect by Letters Patentof the United States: Y

1. A gas engine including means provid.- ing'a combustion chamber andadistributing chamber, a vvalve seat provided with a plu.- r-ality` ofports,a reciprocatory valve provided with anequal number of portsai'-'anged to communicate simultaneously and respectively with said first'mentioned ports to provide an equal number of separate anddirectpassages of communication between said chambers and'iiieans tooperatively varv A the operative relation of the ports in saidvalveWith'the ports in said seat.

The combination 'with a valve seat provided with Va plurality otportsarranged about' an axis, ofa valve stein having its longitudinal axiscoincident with said first.

mentioned axis, a valve carried by said stem and engaging said seat,tandmeans secured to said stem and rotatably adgustable with respect theretoin a plurality of predetermined positions tovary the operative positionofsaid valve with -respect to said seat. :and automatic meanscooperating with said first mentionedmeans for oscillating said valve*lhrougha predetermined angle.

speet tf said seat, and automatic means cooperatng with said arm foroscillating said operative position of said valve with respect i "tovsaid seat and to bring any one of the' 'ports 'of said valvel intoposition to coperate with a particular port ofsaid seat, andautoinatic'means cooperating with said iii-st mentioned means foroscillating said valve through a predetermined angle.

4. ln'amotor, the combination with a casing forming a part of theexterior of said motor, of a valve seat arranged within said casing, avalve engaging said seat, a valve stem arranged to oscillate said valveand-V projecting. through said casing and outwardly from said motor, anarm secured to said stem outside of Asaid casing androtatably'adjustable with respect thereto in a l ality of predeterminedpositions to vary erative position of said valve with revalve through apredetermined angle.

5. A gas engine including means providing a combustion chamber and adistributing chamber, a valve seat separating said chambers and providedwith a plurality of ports, an oscillatory valve provided with an equalnumber oiports arranged to communicate simultaneously andrespectivelywith said first mentioned ports to provide an equal number of separateand direct passages of communication between-said chambers, and means tovary the operative relation of 'said valve with respect to said seat.

G. .The combination witha valve case, of a valve seat arranged in saidcase and provided with a plurality of poi-ts, a' valve stem extendingthrough said case and projecting outwardly therefrom, a valve secured tosaid stem and enga-ging said seat, said valve being providedwith aplurality of ports arranged to cooperate respectively with said ports insaid seat, and automatic means cooperating' Awith said stem foroscillating said valve radiating from a common axis, of a valve Y stemcoaxial with said-ports, a valve carried by said stem and engaging saidseat, a crank arm secured to said stem and rotatably :id- In Witnesswhereof, I. have hereunto set justuble with respect thereto in aplurality my hand this sixth day of June, 1911.- of' predeterminedpositions to vary the oper- JOHN Ch ENGLISH.

ative position of said valve with respectvto saidseat, and automaticmeans' coperating Witnesses:

with said arm for oscillating said valve ALsToN B. MOULTON, through apredetermined angle. ALEXANDER PARK.

